How can I reduce the noise in my orthomosaic? (See screenshots below)
I am using a Trinity Pro (Fixed Wing EVTOL) with a multi camera D2M sensor (4 oblique and 1 nadir sensor, all RGB). In this project I flew around 150 acres and collected around 8,500 images. The images below are the results from the processing. I had to remove the GPU processing option because it kept crashing, and processed solely on the CPU. I also was bummed out that it does not give you a DTM, just like Pix4D Mapper, but I went for the Mapper because it was recommended for the bigger 8 to 10k image projects. How can I trust the dense point cloud to separate the ground layer in ArcPro if my orthomosaic has these pixel noises? Please help me on what options I can check to avoid these issues. Thank you in advance.
I am currently swamped with work and have not had the chance to work on this past project (Since it was a test flight). I cannot disable the Oblique option, because it would only consider one camera out of five, beating the purpose of having the oblique D2M camera sensor with 1 nadir and 4 oblique cameras.
I have used the full blending mode on another project, with the oblique image option on. It gave me some good results, but now the image is shifted by 72 meters… (wondering if this was due to the iBase from Trinity Pro or something else). I also turned on noise filter option on, that may have helped, but I think I also had it on on the previous project. I will run this project with these new options or settings when I have my computer available and will let you know.
Are you using the Oblique D2M as well?
In respect to the DTM, it is a shame that it is not available on Matic. I used to work with Pix4D Mapper and was a good time saver to have it for Canopy Height Models in my case. I was advised by Pix4D to purchase the Matic license because of the amount of images I am using for my projects. But I also have heard that big projects do well on Mapper. I was advised also by Pix4D Support that the workaround for the non existent output of DTM for Matic, is to use either Pix4D Fields (Which I cannot afford another license), or in my case work with GIS software and classify the dense point cloud with the ground option. It has been quite a journey, and I have not generated the DTM through point cloud yet, I need to sit down and figure it out a full day.
Let me know what you have used in the past, I am curious on how other people process imagery through GIS.
@silverio.avila and @maal Just jumping in to say that we definitely have DTM generation on the top of our list for PIX4Dmatic and hope to be able to add it soon.
And looking forward to your processing results @silverio.avila.! Cheers
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Interesting case 